First off, I'm self taught, I don't have any computer science education. Secondly, it wouldn't be too hard to give me an actual problem that the company is actu

First off, I'm self taught, I don't have any computer science education. Secondly, it wouldn't be too hard to give me an actual problem that the company is actually having, and letting me think about it for a few days, then come back with my solution. Why must all interview problems be made up?